From 147dd57162bc3aafb05b7cd431a6835322960663 Mon Sep 17 00:00:00 2001
From: Marc Zinnschlag <marc@zpages.de>
Date: Mon, 30 Aug 2010 12:30:34 +0200
Subject: [PATCH] added Lock and Unlock instructions

---
 apps/openmw/mwscript/docs/vmformat.txt  |  8 ++-
 apps/openmw/mwscript/miscextensions.cpp | 95 +++++++++++++++++++++++++
 2 files changed, 101 insertions(+), 2 deletions(-)

diff --git a/apps/openmw/mwscript/docs/vmformat.txt b/apps/openmw/mwscript/docs/vmformat.txt
index 47f883c8a..0556450e6 100644
--- a/apps/openmw/mwscript/docs/vmformat.txt
+++ b/apps/openmw/mwscript/docs/vmformat.txt
@@ -17,7 +17,9 @@ op 0x20000: AiTravel
 op 0x20001: AiTravel, explicit reference
 op 0x20002: AiEscort
 op 0x20003: AiEscort, explicit reference
-opcodes 0x20004-0x3ffff unused
+op 0x20004: Lock
+op 0x20005: Lock, explicit reference
+opcodes 0x20006-0x3ffff unused
 
 Segment 4:
 (not implemented yet)
@@ -90,4 +92,6 @@ op 0x200007c: GetAiPackageDone
 op 0x200007d: GetAiPackageDone, explicit reference
 op 0x200007e-0x2000084: Enable Controls
 op 0x2000085-0x200008b: Disable Controls
-opcodes 0x200008c-0x3ffffff unused
+op 0x200008c: Unlock
+op 0x200008d: Unlock, explicit reference
+opcodes 0x200008e-0x3ffffff unused
diff --git a/apps/openmw/mwscript/miscextensions.cpp b/apps/openmw/mwscript/miscextensions.cpp
index 1ecfd0c57..9cb65dcd7 100644
--- a/apps/openmw/mwscript/miscextensions.cpp
+++ b/apps/openmw/mwscript/miscextensions.cpp
@@ -9,6 +9,8 @@
 
 #include "interpretercontext.hpp"
 
+#include "../mwworld/class.hpp"
+
 namespace MWScript
 {
     namespace Misc
@@ -53,15 +55,104 @@ namespace MWScript
                 }
         };
 
+        class OpLock : public Interpreter::Opcode1
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime, unsigned int arg0)
+                {
+                    InterpreterContext& context =
+                        static_cast<InterpreterContext&> (runtime.getContext());
+
+                    MWWorld::Ptr ptr = context.getReference();
+
+                    Interpreter::Type_Integer lockLevel = 100;
+
+                    if (arg0==1)
+                    {
+                        lockLevel = runtime[0].mInteger;
+                        runtime.pop();
+                    }
+
+                    MWWorld::Class::get (ptr).lock (ptr, lockLevel);
+                }
+        };
+
+        class OpLockExplicit : public Interpreter::Opcode1
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime, unsigned int arg0)
+                {
+                    InterpreterContext& context =
+                        static_cast<InterpreterContext&> (runtime.getContext());
+
+                    std::string id = runtime.getStringLiteral (runtime[0].mInteger);
+                    runtime.pop();
+
+                    MWWorld::Ptr ptr = context.getWorld().getPtr (id, false);
+
+                    Interpreter::Type_Integer lockLevel = 100;
+
+                    if (arg0==1)
+                    {
+                        lockLevel = runtime[0].mInteger;
+                        runtime.pop();
+                    }
+
+                    MWWorld::Class::get (ptr).lock (ptr, lockLevel);
+                }
+        };
+
+        class OpUnlock : public Interpreter::Opcode0
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime)
+                {
+                    InterpreterContext& context =
+                        static_cast<InterpreterContext&> (runtime.getContext());
+
+                    MWWorld::Ptr ptr = context.getReference();
+
+                    MWWorld::Class::get (ptr).unlock (ptr);
+                }
+        };
+
+        class OpUnlockExplicit : public Interpreter::Opcode0
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime)
+                {
+                    InterpreterContext& context =
+                        static_cast<InterpreterContext&> (runtime.getContext());
+
+                    std::string id = runtime.getStringLiteral (runtime[0].mInteger);
+                    runtime.pop();
+
+                    MWWorld::Ptr ptr = context.getWorld().getPtr (id, false);
+
+                    MWWorld::Class::get (ptr).unlock (ptr);
+                }
+        };
+
+
         const int opcodeXBox = 0x200000c;
         const int opcodeOnActivate = 0x200000d;
         const int opcodeActivate = 0x2000075;
+        const int opcodeLock = 0x20004;
+        const int opcodeLockExplicit = 0x20005;
+        const int opcodeUnlock = 0x200008c;
+        const int opcodeUnlockExplicit = 0x200008d;
 
         void registerExtensions (Compiler::Extensions& extensions)
         {
             extensions.registerFunction ("xbox", 'l', "", opcodeXBox);
             extensions.registerFunction ("onactivate", 'l', "", opcodeOnActivate);
             extensions.registerInstruction ("activate", "", opcodeActivate);
+            extensions.registerInstruction ("lock", "/l", opcodeLock, opcodeLockExplicit);
+            extensions.registerInstruction ("unlock", "", opcodeUnlock, opcodeUnlockExplicit);
         }
 
         void installOpcodes (Interpreter::Interpreter& interpreter)
@@ -69,6 +160,10 @@ namespace MWScript
             interpreter.installSegment5 (opcodeXBox, new OpXBox);
             interpreter.installSegment5 (opcodeOnActivate, new OpOnActivate);
             interpreter.installSegment5 (opcodeActivate, new OpActivate);
+            interpreter.installSegment3 (opcodeLock, new OpLock);
+            interpreter.installSegment3 (opcodeLockExplicit, new OpLockExplicit);
+            interpreter.installSegment5 (opcodeUnlock, new OpUnlock);
+            interpreter.installSegment5 (opcodeUnlockExplicit, new OpUnlockExplicit);
         }
     }
 }